Wrench



Patented May 1, 1923.

rarest BENJAMIN J. Genes, F revives, Taxes.

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Application filed April 3, 1922. Serial No. 549,032.

T 0 all home it may conceive:

Be it known that LBENJAMI'N J. Gianna,

a citizen of the United States, residing" at Poynor, in the county of Henderson and State of Texas, have invented certain new and useful Improvements in Wrenches, oi which the following is a full, clear, and exact description.

My invention relates to wrenches, and has for its object to provide a simple construction whereby the wrench maybe quickly adjusted for varying sizes of pipe or the like,

and after being so adjusted the jaws oi the wrench maybe firmly clamped to the pipe by a lever action having a shittable fulcrum. Other objects and advantages of the invention vill be apparent "from the following description when taken in connection withthe numeral 1 designates the arm of the wrench provided with a handle 2. Fixed to the upper end of the a-rm'l is a jaw 3, which hasextending laterally therefrom a loop 4. Slidably mounted in the loop 4: by

means of shank 5 is a second or movable jaw 6. v

A. lever 7 is pivoted to the lower end of shank 5, as indicated'at 8, and this lever in turn has pivoted thereto a link 9, as indicated at 10. T he lever 7 is beveled at its lower end to provide a screw driver as shown in Figure 1.

Formed on an edge of the arm 1 are a plurality of ratchet teeth 11', and partly encircling this arm and. adapted to engage the ratchet teeth is a U-shaped member 12. The free ends of the U-sha-ped'member 12 are connected by means of a pin or the like 18.

In operation of the device the lever 7' of the wrench is drawn down until the jaws 3 and 6 engage the pipe 1% or other object to be operated upon. The U-shaped member 12 is then adjusted along the ratchet teeth 11 until the pin or abutment 13 engagesthe free end of the. link 9, the lever 7 being held in the position shown in full lines in Fig-- ures 1 and 2. If the lever 7 is now moved on its pivot toward the handle 2 it will be seen'that the jaw 6 will be" drawn toward the'jaw 3 and firmly grip-the object there between. This action is due to the fact that the'link 9 abutsthe pin 13-and in.combina-. tion with lever Tforms a toggle for'drawing the jaw 6 downwardly. The free end of link 9 may havea slight lateral movenient relative to the'pin' 13, but -it cannot move longitudinally of the wren-ihexcept M when the U-shaped member '12,;is adjusted.

along the rack 11.

The ratchet teeth sll, U shaped member 12 v I with its abutment 13,-and the link 9 together- 'A5 '9W a m form shiftablei'ulcrum for'fthe lever '7 whereby the wrench may be adjusted to practicallyany size of pipe and yet have'a fulcrum which will provide sufficient lev'erage for firmly gripping the same.v

In accordance with the patent. have described what I now believe to be tatutesplv the best embodiment of the invention, but I T do not wish to be understood thereby as limiting myself or the scope of the'invention,

as many changes andxmodificationsmay be made without departing from the spirit of th invention; all such llaim to include in f the scope of theappended claims.

' What I claim as new and desire to secure ,by Letters Patentisj 1. A wrench including an arm, a jaw I fixed with'respect'thereto, a second jaw movably mounted with respect to the fixed jaw,

a lever pivoted to the movable jaw, an abut ment adlustably mounted 011 e arm,- and i p link on-the lever for engaging said I abutment 2. A wrench including an arm having ratchet teeth formedthereon, a j aw fixed to said arm, a'second jaw mo vably'mounted ber encircling a portion of the armand adapted to engage said ratchet t'eethatthei with respect to the fixed jaw, a lever pivs oted to the movable jaw, a U-shaped mem-fi loo base of the vU, an abutment connecting' the free ends of the legs ot the .U-shaped member, and means onsaid lever forengaging the abutment.

3. A wrench including an. arm having ratchet teeth, formed thereon, a jaw fixed to said arm, a second jaw movably mounted with respect to the fixed jaw, a lever piv-u ot'ed to themovable jaw a U-shaped mem-' ber encircling aportion of the arm and adapted to engage said ratchet teeth, [an

abutment connecting the free :ends of the legs of the U-shaped member, and a link on said lever for engaging the abutment.

4. A wrench including an arm having ratchet teeth formed thereon, a jaw fixed to said arm, a loop connected to said arm, a second jaw slidably mounted in the loop, a lever pivoted to the sliding aw, a U-shaped member encircling a portion of the arm and adapted to engage said ratchet teeth at the base of the U, an abutment on said U-shaped member, and means on said lever for engaging said abutment.

5. A wrench including an arm, a jaw fixed with respect thereto, a second jaw movably mounted with respect to the fixed jaw, 21 downwardly extending shank on the movable jaw, a lever pivoted to said shank, an abutment adjustably mounted on said arm and interposed between the arm and shank, and a link pivoted to said lever and adapted to engage said abutment.

6. A wrench including an arm, a jaw fixed with respect thereto, a jaw movably mounted with respect to the fixed jaw, a

downwardly extending shank on the movable jaw, a lever pivoted to said shank, an

abutment adjustably mounted on said arm with respect to said fixed jaw, a downwardly extending shank on the movable aw, said shank extending substantially parallel to said arm and on the side thereof remote from the ratchet teeth, a straight lever pivoted to the shank and extending downwardly therefrom on the same side of the arm, a U-shaped member encircling a portion of the arm and adapted to engage said ratchet teeth, an abutment connecting the free ends of the legs of the U-shaped member and interposed between the shank and arm, and means on the lever for engaging said abutment.

BENJAMIN J. GREEK. 

